Debian/node-undici: high 7.5
undici's WebSocket client crashes the whole Node.js process during the opening handshake when a server responds with a subprotocol that the client never requested. A default WebSocket connection sends
Action: Upgrade node-undici to 8.10.2+dfsg+~cs3.2.2-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 8.10.2+dfsg+~cs3.2.2-1 | - |
Fixed versions
| 8.10.2+dfsg+~cs3.2.2-1 |
Sources
- osv: DEBIAN-CVE-2026-19534#Debian:14/node-undici
- https://security-tracker.debian.org/tracker/CVE-2026-19534
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